Foldable seat.



A. W. L. HARTBAUER.

FOLDABLE SEAT.

APPLICATION FILED MAR. 6. 1916.

1,218,857. Patented Mar. 13, 1917.

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' I [NI/ENTUR A.WL.HarZ 5451a) f/WM A TTOR/VE V AUGUST W. L. HARTBAUER,0F DETROIT, MICHIGAN.-

FOLDAIBLE SEAT.

Specification of Letters Patent.

Patented Mar. 13, 1 9 1 7.

Application filed March 6,1915. Serial no. 82,304.

To all whom it may concern:

Be it known that I, AUGUST W. L. HAR BAUER, a citizen of the UnitedStates, residing at Detroit,in the county of WVayne and State ofMichigan, have invented a new and useful Foldable Seat, of which thefollowing is a specification.

This invention relates to foldable seats especially adapted for useauxiliary to the seats of motor vehicles, and it consists in the novelconstruction and arrangement of parts as hereinafter set forth andclaimed.

The invention has for its object the provision of a light, strongportable seat of simple and inexpensive construction, which may bemounted in the tonneau space of motor-vehicles to serve as an auxiliaryseat for use in emergencies when desirous of increasing the seatingcapacity of the vehicle, and wherein provision is made for springcushioning the seat upon a hinged interlocking supporting standardadapted to be detachably mounted in a floor-socket, and which may becompactly folded together with the body of the seat to facilitatestoring when not in use v v A preferred form of embodiment of theessential features of the present invention is illustrated in theaccompanying drawings, in which,-

Figure 1 is a side elevation of the seat in the unfolded or normalposition.

Fig. 2' is a rear elevation of the seat in the position shown in Fig. 1.

Fig. 3 is a central-vertical section on ted line 33 of Fig. 2.

Fig. l is a cross section on dotted line 4.4 of Fig. 2.

Referring to the parts of the device by the characters of referencemarked on the several views of the drawings, 1 represents a curvedtapering upright back member preferably cast of malleable iron, the bodyof which is of the form, of an opentriangul'ar frame provided with asurrounding laterally projecting stiffening rib 2 and having a crossportion 3 connecting the sides of the frame midway the ends thereof. Theupper end of the back member 1 is formed with a' T-shaped plate itowhich an arc'u'ate back rest 5 is attached" by screws, as at 6.

dot

The lower end or base of this back member is inwardly turned or offsetto form an inclined bearing shoulder 7, and projecting laterally fromthe inner faceupon opposite sides of said member are lugs or ears 8, towhich the upturned ends of a pair of angular arms 9 are pivotallyconnected,- respectively, by studs as at 10. These arm's, which aresecured by screws 11 to the under face of a circular seat 12, engage atthe juncture of their angular portions with the "shoulder 7 and serve tonormally support said seat in the proper angularly extended relationupon said back member.

Formed integral with the base of the back member, and dependingcentrally therefrom,

is a bifurcated extension forming a pair of spaced parallel tongues 13having formed transversely therethrough vertically elongated apertures14 The upper portions of said apertures are slightly inclined rear.-wardly and terminate in outwardly leading right-angled channels 15 whichare formed in registering alinement in the inner faces of enlargedportions 16 of said tongues at their juncture with the base of said.back member, as clearly shown in Figs. 2 and 3.

A yoke-shaped bracket 17, upon which the back-member is pivotallymounted to swing and to interlock therewith, is formed with parallellateral extensions 18 at opposite ends upon one side and has upon theopposite side, near the upper end thereof, a vertically and laterallyextending'ear 19 which lies freely within the space between the tongues13, and extending laterally from opposite sides of said ear are' axiallyalin'ed trunnions 20' which are freely received, re spectively, in theelongated apertures 141 of said tongues. Said trunnion's are entered insaid apertures by first positioning the bracket atthe rear of the backmember so as to enter the ear 19 between the tongues 13 and pass saidtrunnions through the channels 15 into said apertures. The bracket isthen moved downwardly to carry the trunnions into the lower ends of theapertures at which points said apertures are enlarged rearwardl byarcuate depressions 21 to permit lateral movement of said trunnions andafford clearance between the back face of the bracket and the rear endportions of the tongues to enable the bracket to be swung about the endsof said tongues into a ver tical portion upon the opposite edgesthereof, as shown in Figs. 1 and 4. In this position the back face ofthe bracket, which is oppositely inclined as at :22 (see Fig. 4) will bebrought into parallel engagement with the correspondingly inclined edges23 of said tongues and through the wedging engagement of the trunnionswith the inclined edges of the elongated apertures by the gravity of theback member, said bracket and back member will be firmly locked againstrelative lateral and swinging movements.

To provide cushioning means for supporting the seat, I employ an uprightor standard 24, preferably tubular, which extends freely at its upperend through the extensions 18 of the bracket 17, and embracing saidstandard and interposed between said extensions is an expansive coiledspring 25 which abuts at one end against the upper extension and restsat its opposite end upon a pin 26 which extends transversely throughsaid standard and engages the lower extension of said bracket, said pinserving as a stop to prevent the withdrawal of the standard and to limitthe upward travel of the bracket in its movement thereon under thetension of said spring. The lower end of the standard may be supportedvertically in a flanged socket 27 adapted to be secured to the floor orother suitable base to form a support upon which the seat may revolveand from which the standard may be withdrawn when desirous of removingthe seat.

when removing the standard from the socket by lifting upwardly on theback member of the seat the tongues on said member will be withdrawnfrom engagement with the back face of the bracket and the trunnions ofsaid bracket will pass from wedging engagement with the inclined edgesof the apertures of said tongues into the enlarged lower extremities ofsaid apertures, in which position the bracket may then be swung togetherwith the standard upon the rear of the back member, when it may befrictionally held in position by forcing upwardly thereon to cause thetrunnions to engage the opposite edges of'the apertures with the bracketbearing against the lower rear ends of the tongues and with the end of,the standard contacting with the cross portion 3 of the back member inan angular folded position therewith, as indicated by dotted lines inFig. 3. The seat portion may also be folded upon the back member asshown by dotted lines, thus enabling the parts to be compactly groupedand reduced in bulk to facilitate storing when not required for use.

I claim 1. In a foldable seat, a back member having a seat memberhingedly mounted there on, a supporting standard adapted for detachableengagement with a floor socket, connecting means mounted on saidstandard and having pivotal and slidable interlocking engagement withsaid back member to retain said member in fixed extended relation tosaid standard and to permit said standard to swing thereon into foldedrelation with said seat and back member.

2. In a foldable seat, a back member having a seat member mountedthereon, a supporting standard, and a springpressed bracket mounted onsaid standard and piw otally and slidably connected with said backmember to fold thereon and to interlock in an extended relationtherewith.

3. In a foldable seat, a back member car-' rying a seat member andhaving a bifurcated extension provided with elongated apertures therein,a supporting standard, and a bracket mounted on said standard and havingtrunnions engaging in the apertures of said bifurcated extension toretain said bracket in fixed parallel engagement with said extension andto permit said bracket to swing about the end thereof.

4. In a foldable seat, a back member having a seat member hingedlymounted to fold thereon, a supporting standard, and a bracket mounted onsaid standard and pivotally connected to interlock with said back memberand to swing thereon into folded relation with said seat and backmember.

5. In a foldable seat, a back member carrying a back rest at its upperend and terminating at its lower end in a bifurcated angu lar extensionhaving elongated apertures formed therethrough, a seat member hingedlymounted on said back member and supported on said angular extension, asupporting standard, and a bracket mounted on said standard, saidbracket having an ear provided with trunnions engaged in the aperturesof said extension to hingedly connect and slidably interlock saidbracket with said back member.

6. In a foldable seat, a back member carrying a seat member and having aforked extension thereon, a supporting standard, a

coiled spring embracing said standard, a

bracket mounted on said standard and supported on said spring, and meanson said bracket cooperating with said forked extension for hingedlyconnecting and slidably interlocking said bracket with said back member.

7. In a foldable seat, a back member carrying a seat member and having aforked extension provided with inclined elongated apertures therein,said apertures terminating at their upper ends in outwardly leadingrecesses in the opposed faces of said forked and to engage the inclinedportions of said extension, a supporting standard, and a apertures toretain said bracket in Wedging springpressed bracket mounted on saidengagement With said forked extension. standard and having an earprovided With In testimony whereof, I sign this specifi- 10 trunnions,said trunnions adapted to be encation.

tered in said apertures through said recesses AUGUST W. L. HARTBAUER.

Copiesof this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. 0.

